Title:
重荷重用空気入りラジアルタイヤ
Document Type and Number:
Japanese Patent JP4315473
Kind Code:
B2
Abstract:
A heavy duty pneumatic radial tire comprising a carcass (4) of at least one rubberized cord ply of radial arrangement toroidally extending between a pair of bead cores (3) embedded in bead portions (1) and wound around the bead core (3) from the inside of the tire toward the outside to form a turnup portion (4t), at least one bead portion reinforcing layer (6) made of a rubberized steel cord layer extending outside the turnup portion (4t) over an end of the turnup portion, and at least one rubberized organic fiber cord layer (5) extending outside the turnup portion over an end of the turnup portion outward in a radial direction of the tire, in which the organic fiber cord layer (5) is arranged so as to extend from a position near to an outside of the bead core (3) over the end of the turnup portion of the bead portion reinforcing layer toward the outside of the tire and spread apart to the turnup portion.
Inventors:
Toshiya Miyazono
Application Number:
JP50206199A
Publication Date:
August 19, 2009
Filing Date:
June 03, 1998
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C15/06; B60C15/00
Domestic Patent References:
| JP5178039A | ||||
| JP61211107A |
Attorney, Agent or Firm:
Kosaku Sugimura
Junko Sugimura
Hiroshi Tokunaga
Umemoto Masao
Juno Aoki
Mitsuo Nakatani
Shiro Fujitani
Junko Sugimura
Hiroshi Tokunaga
Umemoto Masao
Juno Aoki
Mitsuo Nakatani
Shiro Fujitani